Crusher.



A. NIEDERMEYE'R & R. BERNHAR GRUSHER. APPLICATION FILED AUG. 2, 1909'.

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0311311211. APPLICATION FILED AUG. 2, 1908.

Patented May 31, 1910.

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ARTHUR NIED RMEYER AND, 3101mm) BERNHABD, or MILWAUKEE, WISCONSIN, As-

- SIGNORS TO POWER AND MINING MACHINERY COMPANY, A CQRPORATION OF.

NEW JERSEY.

. Specification of LettersxlPatent,

. Application filed August 2,

, CRUSHER.-

Patented May 31, 1910. 1909. -Seria1.No. 510,688.

lVisconsin, have invented certain new and useful Improvements in Crushers, fully de-- scribed and represented in the following specification, and the accompanying glrawings, forming a part of the same.

This invention relates to' that class of gyratory crushers employin a shaft carrying the crushing head and operated by dnving mechanism below the head, the especial object of the invention being to provide a more compact, lighter, and stronger machine of this class.

In accordance .with the present invention, that portion of the machine below the crushing head is shortened by locating the eccentric and eccentric hub directly below' the" crushing head, with the driving gear at the bottom of the eccentric, so that. the space below the head which-is usually occupied by the diaphragm is utilized for the eccentric, and the crushing shaft and portion of. the crusher below the crushing head thusmay be made much shorter. '--The crushed "material is delivered from the crushing head through the space between theeccentric hub and the casing, and'in the preferred form of machine adiaphragm cast with the casing extends through this space to direct the crushed material to the delivery at one side of the machine, but the broader -.featur es of the invention may be embodied ina: construction not havin such a diaphragm, the crushed material belng delivered at thebottom of the machine through thespacesurspider, so as to prevent vertical rubbing action or tipping 'gyrates. c 7 The invention includes, in addition'to the general features above outlined, certain features of'cons'truction'and combinations of of the ring as thehead parts, all as more particularly described hereafter and the claims.

In the accompanying drawings, which .show a gyratory crusher of a well known type embodying allthe features of the invention in their preferred form, as applied to such a crusher: Figure 1 is a vertical centralsection of the crusherz. Fig. 2 is ahorizontal'section on the line2 of Fig. 1; Fig. 3 is a verticalsection on the line 3 of Fig. 1. Fig. at is adetail showing a modification of the dust excluding ring. v

Referring-to said. drawings, A is the easing or shell carrying the spider B and closed at the bottom below the driving mechanism by the cap 0. The crushing shaft F carrying the crushing head G is shown as suspended in the spider B by the well known suspension of the McCully patents", but may be'supported otherwise within the invention.

particularly pointed out in I The counter shaft H is mounted in the coun- I hub O' and eccentric N are placed directly below the crushing head with the driving gear M at the bottom of the eccentric. This eccentric hub O is preferably formed integral with the casing and with the wall P forming a chamber inclosingthe ears L, M, so as to cover and protect the riving mechanism. On the counter shaft side, the wall of the chamber inclosing the -c0untershaft gear L connects the eccentric hub to the casing, and on the opposite side is formed arm 10 extending from the casing 'to wall P, preferably being rounded on the upper side for free passage of the crushed material. The hub 0 extends downward by the usual pul ey K, this counter shaft H I tothe specifio construe protected, is omitted, and the eccentric within the :gear inclosing chamber to the gear M, in the construction shown, inclosing the shaft and forming a long bearing for the eccentric. An inclined diaphragm 'Q, extends downward from below the-crushing head. at the counter shaft side of the crusher and through the delivery'space between the gear chamber and casing to the bottom of;

the crusher so as to deliver the material at one side of the crusher and to the delivery" chute R, shown as secured totthe bottom of the crusher to continue the diaphragm.

" Qf *Thebottom of the crusher below the to the other moving parts of the crusher through the through theeccentric and'hub.v I 7 ,On vthe top of the eccentric hub O is a seat 1 which is preferablyspherical with its gear is closed by cap '0 bolted on the bottom of the crusher,- the eccentric N running ;on the bearing ring 11 on this cap.

. The machi'ne is preferably lubricated grease, which. is introduced through the cap G below the shaft M through grease pipe l2 'on cap C, so that-the lubricant passes first to the eccentric bearing surfaces, andthen ease holes 13. extending surface-struck from the center on, which 'theishaft gyrates in'the spider B, on which runs a dustexcluding: ring 14, moving with the head' G and having a correspondlpg' v spherical surface engaging the spherical seat flu on the eccentric hub O. This 'ring lt-is .fshownin Fig, I as formed separately from h w h g "h ad G, so that the crushing 35 headandshaft maybe raised to adjustg'the ,flcrushingfheadwithout interfering with the .closurefiormed by the rin l4 'at'J-the top of ere vertical aderable, other inclined surfaces; as ."conical surfaces, may-be used, The chief advantage of. the inclined surface is that the vertical -"rubb'ing action and of the ringfas J the head gyrates whiehwouldresult if they jengaglng, :surfac'es were flat, are avoided,

ieal surfaces.

v the bestres ults being secured with the spher- It will he seen that "there is no opening through which the grease or other lubricant forced in may escape except at the top of the hub around the ring l4, and around the counter shaft H, and these are the only .openings through which dust could enter the driving mechanism. The grease orother lubfithnt will be forced outthrough these' openings, closing them absolutely against the entryof dust, so that the crusher shown is dust proof as to the driving-mechanism.-

The counter shaftibearing I in the form 5 I shown consists of a solid sleeve, which may be-bored and faced at both ends and will be fitted with the usual bronze or babbitted bushings. This simplifies the construction greatly, and enables the machine to be kept in proper working condition by unskilled movable as a single piecewith'the counter labor, the counter shaft bearing being reshaft H and its gear L, and the return of the shaft andgear to proper position being assured by the return of the counter shaft ,bearing'L- The driving gear M and eccen- -tric a1so are readily removed and replaced through the opening at the bottom of the crusher, when the ca C is removed. In this construction ofcru er, it; has been, usual; to provide a. door in the casing, for examination of the meshing of the gears and their condition, room for such door being fprovidedby. the considerable'depth of the cas ing below the crushing head anddiaphragm.

the present short frame crusher, provision for examination of the gears 1s made by two; openings 2, 3 into the gear casing below the counter shaft, these openings being so located that by insertinga'lighted candleor other light through opening 2 the meshing ofthegears may be examine j the mesh'line of the gears. N r 7 It will be, seen that the main shaftof this crusher is- 'very short, as compared with the ,shafts' o f.v other gyratory crushers, so that through the opening 3 which is in line with heavy strains is largely reduced; This construction materially strengthens the. ma

chine, asthe shaft in previous crushers has beenon'e of the weakest-parts, and a stronger,

y, I p 10 5. ,"sha'ft ofns naIler diameter ismade possible the present invention. a The mounting of'- i the eccentric close. to the. head also secures a very rigid construction. The shortening [of the shaft and lower portion of the casing not/only reduces largelyx-the height and ,weightof' themachine, but also makes it much easier to dismantle the machine on v acct aunt of the greatly reduced weight. f The integral construction of the casing,andthe fbrac ng and support of the eccentric 'hub and gear chambers by the diaphragm also (enables the machineto be made lighter 01;

7 equal; strength.

It is to be understood that the invention ,is notto be limltfedto the particularcon- 'struction of: arrangement of the devices 4 shown as embodying the invention, but w modifications may be made-therein within the scope of the claims while retaining the invention defined by the claims. What is claimed is 1. In a gyratory crusher, the combination the tendency of. the shaft to deflect under with the crusher shaft andbrushing head 1 driving gear-atthe bottom of the eccentric,

thereon, of shaft driving mechanism including an eccentric directly below the head, and

an eccentric hub and gear inclosing chamber below the head with space between the outer casing and'the' hub and gear chamber for the delivery of the. crushed material.

inclose the gearing with an annular space 2. In a gyratory crusher, the combination with the crusher 'shaft and crushing head; thereon, of shaft driving mechanism includ-- ing an eccentric directly below the head, an eccentric hub and gear inclosing chamber below the head-with space between the outer casing and the hub and gear chamber for the delivery of the crushed material, and an inclined diaphragm in said delivery space.

3. In a gyratory'crusher, the combination with the crusher shaft, ,the crushing head thereon and the shaft driving mechanism including an eccentric, of an eccentric hub directly below the crushing head, and a dust excluding ring-engaging the hub and closing the space between the hub and crushing head.

45111 a gyratory crusher, the combination with the crusher shaft, the crushing head thereon, and the shaft driving mechanism including an eccentric, of an eccentric hub directly below the crushing head, and a dust excluding ring separate from-the head and engaging the hub and closing the space between the hub and crushing head.

5. In a gyratory crusher, the combination with the crusher shaft and crushing headthereon, of an eccentric below the head, a driving gear at the bottom of the eccentric, a counter shaft gear engaging the top of the driving gear, and an eccentric hub surrounding the eccentric and formed integrally with the casing and with a chamber arranged to surrounding the chamberbetween the chamher and casing for the delivery of the crushed material.

-6. In a gyratory crusher, the combination with the crusher shaft and crushing head thereon, of an eccentric below the head, a driving gear at the bottom of the eccentric, a counter shaft gear engaging the top of the driving gear, an eccentric hub surrounding the eccentric and formed integrally with the casing and with a chamber arranged to inclose the gearing with an annular space surrounding the chamber between the chamber and casing for the delivery of the crushed material, and an inclined diaphragm formed integrally with the casing and chamber and extending downward through the delivery space from the casing at the top of the eccentric above the counter-shaft gear to the bottom of the crusher.

7 In a gyratory crusher, the combination with the crusher shaft and crushing head thereon, of an eccentric below the head, a

a counter-shaftgear engaging the top of the driving gear, an eccentric hub surrounding the eccentric and formed integrally with the casing and with a chamber arranged to inclose the gearing with an annular space surrounding the chamber between the chamber andv casing for the delivery of the crushed ,inaterial, an inclined diaphragm formed "integrally with the casmg and chamber and extendingdownward through the delivery space from the casing at the top of the eccentric above the counter-shaft gear to the bottom of the crusher, and a supportconnecting the gear chamber and hub with the casing on the side opposite the counter-shaft gear chamber,

8. In a gyratory crusher, the combination a delivery space for the crushed material extending downward between the outer and inner casings.

' 9. In a gyratory crusher. the combination with the crusher shaft and crushing head thereon, and a hub and shaft driving mechanism below the head, of an outer casing below the head, and an inner casing within said outer casing and inclosing the hub and driving mechanism, said inner casing being of less diameter than the outer casing and separated from the outer casing to provide a delivery space for the crushed material extending downward between the outer and inner casings, and an inclined diaphragm in said delivery space arranged in a plane crossing the driving mechanism.

10. In a gyratory crusher, the combination withjthe crusher shaft and crushing head thereon, of an eccentric and eccentric hub directly below the crushing head and a dust excluding ring carried by the head and having an inclinedseat on the top of the hub.

11. In a gyratory crusher, the combination with the crusher shaft and crushing head thereon, of an eccentric and eccentric hub directly below the crushing head, and a dust excluding ring separate from the shaft and head and having a sipherical seat on the top of the hub struck from the center of motion of the crusher shaft.

12. In a gyratory crusher, the combination with the crusher shaft and crushing lring having an extended vertical surface engaging the head to permit adjustment of the'latter in engagement with the rin 13. In a gyratory crusher, the com ination with the crusher shaft and crushing 5 head thereon, of an eccentric and eccentric hub below the head,- a driving'gear at the bottom of the eccentric and a counter shaft ear above thedriving gear, a' gear chamr within and integral with the casing and 10 providing an annular space surrounding the chamber between the ehamber'and' casing for the deliveryof the crushed material, and a cap at the bottom of the casing closing the chamber. a I v In testimony whereof, we have hereunto 15 set our hands in the presence of two subscribing witness es.

" ARTHUR NIEDERMEYEB.

RICHARD BERNHARD. Witnesses? THOMAS WEARE,

L. F; SNYDER, 

